Big Sandy, located in Sweetwater, Wyoming, is a Federal-owned dam on Big Sandy Creek with a primary purpose of flood risk reduction. Constructed in 1951, this Earth-type dam stands at a height of 85 feet and has a storage capacity of 54,400 acre-feet. The dam spans 2,350 feet in length and has a spillway width of 170 feet, designed to handle a maximum discharge of 7,350 cubic feet per second.

Managed by the Bureau of Reclamation, Big Sandy plays a critical role in mitigating flood risks in the region and providing irrigation water for agricultural purposes. The dam is state-regulated and inspected regularly to ensure its structural integrity and operational efficiency. With a hazard potential rated as high and a moderate risk assessment score, efforts are in place to manage potential risks and ensure the safety of surrounding communities.

For water resource and climate enthusiasts, Big Sandy serves as a vital infrastructure for water management in the area, showcasing the intersection of engineering, environmental stewardship, and public safety. As a key component of the Bureau of Reclamation's operations, the dam exemplifies the importance of proactive risk management and regulatory oversight in safeguarding water resources and enhancing resilience to climate-related challenges. With its strategic location and significant storage capacity, Big Sandy stands as a testament to the ongoing efforts to balance water needs, flood protection, and ecological sustainability in the region.